TMV Water Testing

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At TMV Water Testing, we provide professional water temperature testing and thermostatic mixing valve (TMV) performance checks for properties across the UK.

Our services help organisations check whether TMVs are maintaining appropriate outlet temperatures and identify valves that may require adjustment, servicing, repair or replacement.

We provide TMV water testing for care homes, healthcare facilities, schools, hotels, leisure facilities, commercial buildings and managed residential properties. From individual valves to sites with multiple TMVs, our service can be tailored to the requirements of your property.

What is TMV Water Testing?

TMV water testing involves measuring water temperatures and assessing the performance of thermostatic mixing valves.

A TMV blends hot and cold water to provide water at a controlled outlet temperature. If the valve becomes worn, blocked or develops a fault, its performance can be affected.

Testing can help establish whether the valve is operating as expected and highlight TMVs requiring further attention.

What does TMV Water Testing Include?

The exact checks required will depend on the valve, water system and property.

Our TMV water testing services can include:

• Outlet temperature testing – Measures the mixed water temperature delivered at the outlet.
• Temperature stability checks – Assesses whether the valve maintains a consistent mixed water temperature.
• TMV performance testing – Checks the overall operation of the thermostatic mixing valve.
• Failsafe testing – Assesses the response of the valve to an interruption in the cold water supply, where appropriate.
• Valve inspection – Checks for visible signs of leaks, wear, corrosion or deterioration.
• Temperature recording – Records relevant temperature readings and testing results.
• Fault identification – Highlights valves that may require adjustment, servicing, repair or replacement.

Where several TMVs are installed within the same property, multiple valves and outlets can be tested during the same visit.

Why is TMV Water Testing Important?

Thermostatic mixing valves are used to control the temperature of water supplied at an outlet.

Regular testing provides a way to check how these valves are performing and identify changes in outlet temperature or valve operation.

TMV water testing can help:

• Identify incorrect outlet temperatures
• Check temperature stability
• Identify poorly performing valves
• Detect potential faults
• Determine whether further maintenance is required
• Maintain records of temperature checks
• Support ongoing water system management

This can be particularly important in environments used by children, elderly people and other vulnerable individuals.

What are the Signs of Poor TMV Performance?

Problems with a thermostatic mixing valve are not always immediately obvious.

Signs that a TMV may require further investigation include:

• Water becoming hotter or colder than expected
• Fluctuating outlet temperatures
• Difficulty maintaining a consistent mixed temperature
• Reduced water flow
• Leaks around the valve
• Visible deterioration or corrosion
• A valve failing to respond correctly during testing

If testing identifies a problem, further inspection or servicing can help determine the cause.

How much does TMV Water Testing Cost?

TMV water testing typically costs approximately £200 to £300.

The final cost will depend on factors such as:

• Number of TMVs
• Number of outlets requiring testing
• Accessibility of the valves
• Property size
• Type of water system
• Testing requirements
• Location of the property

Properties with several thermostatic mixing valves can usually have multiple units assessed during the same visit.

Contact our team with details of your property and the approximate number of TMVs requiring testing to discuss the cost.

TMV Water Testing for Commercial and Public Properties

We provide TMV water testing across a wide range of property types throughout the UK.

• Care Homes: TMVs are commonly installed at outlets used by elderly and vulnerable residents. Testing can check outlet temperatures and identify valves that are no longer performing as expected.
• Hospitals and Healthcare Facilities: We provide TMV water testing for healthcare environments with individual or multiple thermostatic mixing valves.
• Schools and Nurseries: TMV testing can be carried out across washrooms and other outlets within schools, nurseries and educational facilities.
• Hotels and Leisure Facilities: Hotels, gyms and leisure centres may have numerous TMVs serving bathrooms, showers and changing facilities. Multiple valves can be tested during the same visit.
• Commercial Buildings: We work with businesses, property managers and facilities managers responsible for thermostatic mixing valves within commercial properties.
• Managed Residential Properties: Testing is also available for managed residential properties and accommodation where thermostatic mixing valves are installed.

Testing Multiple TMVs

Larger properties can contain numerous thermostatic mixing valves across different areas of the building.

We can test multiple TMVs and outlets during the same visit, providing a practical way to assess valve performance throughout the property.

Where individual valves are found to be operating outside the expected parameters, they can be identified for further investigation.

How Often should TMV Water Testing be Carried Out?

There is no single testing frequency that is appropriate for every TMV installation.

The appropriate frequency can depend on the type of property, people using the outlets, valve manufacturer, water conditions, previous testing results and the property’s water management procedures.

Higher-risk environments may require more frequent monitoring than other properties.

Testing schedules should therefore take account of the property’s risk assessment, relevant guidance, manufacturer recommendations and previous results.

Planned TMV Water Testing

For organisations responsible for multiple thermostatic mixing valves, testing can be arranged on a scheduled basis.

Planned testing can help facilities and property managers keep track of outlet temperatures and identify changes in valve performance over time.

The testing frequency can be based on the property, individual valves, previous results and relevant water management requirements.

Why Choose TMV Water Testing?

We provide a focused TMV water testing service for organisations throughout the UK.

Whether you have one thermostatic mixing valve or multiple TMVs across a large property, we can provide testing based on your requirements.

Our services include:

• Water temperature testing
• Outlet temperature checks
• TMV performance checks
• Temperature stability checks
• Failsafe testing where appropriate
• Valve inspections
• Multi-valve testing
• Scheduled testing
• Identification of valves requiring further attention

Contact Us

If you need to check outlet water temperatures or assess the performance of your thermostatic mixing valves, contact TMV Water Testing.

Tell us about your property, the approximate number of TMVs or outlets and the testing required, and our team can discuss the appropriate service.

Frequently Asked Questions

What Happens if a TMV Fails Testing?

If a thermostatic mixing valve does not perform as expected during testing, the next step will depend on the problem identified.

Further work could include:

• Valve adjustment
• Cleaning and descaling
• Filter or strainer cleaning
• Internal component inspection
• TMV servicing
• Repair
• Valve replacement

Testing provides the information needed to identify valves requiring further attention rather than allowing performance problems to go unnoticed.

Can TMV Water Testing be Combined with Servicing?

Yes. TMV water testing can be combined with servicing and maintenance where required.

Testing checks the water temperature and performance of the valve, while servicing can address issues such as limescale, debris, blocked strainers and worn components.

Combining testing and servicing can be particularly useful for properties with multiple valves or TMVs that have not been maintained recently.

Find More Info

Make sure you contact us today for a number of great TMV water testing services.

For more information on TMV water testing, fill in the contact form below to receive a free quote today.